Answer:
Irrigation is the artificial process of applying controlled amounts of water to land to assist in production of crops. Irrigation helps to grow agricultural crops, maintain landscapes, and revegetate disturbed soils in dry areas and during periods of less than average rainfall.
Answer:
Yes its both a physical and chemical change heres why.
When heated , the wax melts to form a liquid wax . The liquid wax then becomes a solid wax upon cooling ( Physical change )
When the candle is lit, the wax near the tip of the candle will melt . The wick then absorbs the liquid wax . The liquid wax then vapourizes due to the heat emitting from the flame . The wax vapour then burns to give off a black substance ( what we will to as CO₂ , soot ) , heat and water vapour
(Chemical change )
Brainliest ? Hope I answered your question
Answer:
C
Explanation:
I just think it is the right answer :) Sorry if I am wrong..
Answer:
Option a
Explanation:
Ester ethyl butanoate is a Chemical compound with Molar mass of 116.16 g/mol, the Boiling point is 121 °C and the Density is 879 kg/m³.
Looking at the chemical representation of the compound, it can be shown that the chemical compound contains the an ester functional group and this it is formed through the reaction of a -COOH containing compound/salt and an alcohol.
The chemical representations showing the chemical reaction is given below;
CH3CH2CH2COOCH2CH3 + Acid(H2O, H^+) =========> C2H5OH + C4H8O2.
Thus, acidic hydrolysis of the ester gives ethyl alcohol and butanoic acid.
